So-called insufficient power is what is commonly referred to as a “weak” diesel engine. Under normal circumstances, Cummins diesel generators usually have a certain power reserve and can operate machines normally in working order. When the power is insufficient, it means that the diesel generator cannot move its working machines, accompanied by the following phenomena.
①The diesel generator emits black smoke. At that time, a large amount of black smoke was coming from the exhaust of the diesel generator.
②The exhaust temperature of the diesel generator is high. At this time, the exhaust pipe and turbocharger turbine are dark red.
③The speed of the diesel generator decreases or is unstable, and there is a sound of unable to work.
Cause analysis
The power index of a diesel generator is a complete reflection of its technical conditionique. If it is technically in good condition, a diesel generator can produce sufficient electricity. When power is insufficient, it often reflects various system failures. According to the working principle of a diesel generator, the basic conditions for a diesel generator to generate sufficient effective power are:
① Inject a sufficient amount of well-atomized fuel into the cylinder according to a certain rule and at a certain time.
② A sufficient amount of fresh air will enter the cylinder at a certain time according to certain rules, and the burned exhaust gas will be discharged from the cylinder at a certain time according to certain rules.
③The air and fuel are mixed well and burned completely.
④ The friction power and energy consumption of accessories are small, that is, the mechanical efficiency should be high.
Therefore, when analyzing the causes of electricity shortagequoted, we can start from the above basic conditions and analyze the causes according to the system according to the phenomenon of electricity shortage.